From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: Re: [PATCH v4 03/20] iommu/tegra: gart: Ignore devices without IOMMU phandle in DT Date: Mon, 24 Sep 2018 12:05:25 +0200 Message-ID: <20180924100525.GE21032@ulmo> References: <20180924004153.8232-1-digetx@gmail.com> <20180924004153.8232-4-digetx@gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="Ns7jmDPpOpCD+GE/" Return-path: Content-Disposition: inline In-Reply-To: <20180924004153.8232-4-digetx@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Dmitry Osipenko Cc: Jonathan Hunter , Joerg Roedel , Rob Herring , Robin Murphy , iommu@lists.linux-foundation.org, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org --Ns7jmDPpOpCD+GE/ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon, Sep 24, 2018 at 03:41:36AM +0300, Dmitry Osipenko wrote: > GART can't handle all devices, hence ignore devices that aren't related > to GART. IOMMU phandle must be explicitly assign to devices in the device > tree. I think technically the GART can indeed handle all devices since it is just a physical address region that can be used to remap other physical addresses. That's not to say that doing so would be a good idea. So the commit message here is slightly confusing, but other than that the idea is good, so: Acked-by: Thierry Reding --Ns7jmDPpOpCD+GE/ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAluotuUACgkQ3SOs138+ s6FALBAAihy4Koa8dQIhpVPATIDDQsyRjFl4jqvkGh5jHGBULZGdXN8uUyzuMj7/ 5aOiJQ/HgbzR+U/eX/rwOLMQmcr6aLYw2TqwcpwcERhOvDyQNRI8U9PtTIAxcuhO DFqTwYCX+aZGy2MCfF+P9hl3MKweAXFCqvj+ckBh1GIGkU5lqYM8r1sgfz/mB/xc QDcODaJcIYy/umpDO5ADZK+Q9A6KC/ZGY6xdS4BppKlasG8wKGG6nC0PbiSKhpby mjeIRFo2XULhp7/+0Nqj2V5gGDUcu+yRe2lKKMzmELeaIJ7LgxkD3uva4mQ4nxFK mx/kuCeSZrvxWiV12whALZ0c2znYamDXzlLHb9orgEsV4zrb6OhBAh5LK733AQ/e +5FpejQ+Tna8pWVzRDTkvx2GAeYS+EdmDXjZT+OLGVk2DvAPfx1ORFKIGaWrisZQ B/yASM3fEXX4/fpQaz6WN6XLUtZu4SWRJR5QIF+E5t6jAPhBVHyaD6ItNGb+Vbpm KoEHJfg4eIFwlN5r6aSV/UVS9Ik014fxUu5DtPr3U5+7jLcL6N7/rhYuF1fE01yv A1B6bjK9NeCwo4qgUiU+xKHR/2VBw9OaL06qYakzz0K6XADzDbyBYsolqU/TdbMG /NI2DduseQE3DzaSuvREtm3fQbJN4s/tbdcTW/VGygIvHL+RTU0= =Cw72 -----END PGP SIGNATURE----- --Ns7jmDPpOpCD+GE/--